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In a television tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.8 105 N/C during the first 5.0 cm of the tube's length; then they move at essentially constant velocity another 40 cm before hitting the screen.
(a) Find the speed of the electrons when they hit the screen.
(b) How long does it take them to travel the length of the tube?
In a slow-pitch softball game, a 0.200 kg softball crossed the plate at 18.00 m/s at an angle of 45.0° below the horizontal. Determine the impulse delivered to the ball
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A particle with a charge of q = -5.00 nC is moving in the uniform magnetic field of vec{B}=( -1.20 T ) hat{z}. The magnetic force on the particle is measured to be vec{F}= ( -7.60×10-7 N )hat{y}.
A basketball star covers 2.6 m horizontally in a jump to dunk the ball. His motion through space can be modelled precisely as that of a particle at his center of mass. His center of mass is at elevation 1.02m when he leaves the floor. It reaches a..
A thin uniform rod has a length of 0.500m and is rotating in a circle on a frictionless table. The axis of rotation is perpendicular to the length of the rod at one end, What is the mass of the bug
find the velocity of the plane relative to the ground.
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